The Inherited House Nobody Appraised: Why a Date-of-Death Valuation Matters Under a Beneficiary Deed or in Probate

A house passes to a child by beneficiary deed, or through probate, and nobody orders an appraisal. Years later the house is sold, the tax preparer asks what it was worth on the day of death, and the answer has to be reconstructed from a market that no longer exists. It is one of the most common and most expensive omissions we see in Missouri estate settlement, and it is entirely avoidable.

Most Missouri families understand that a beneficiary deed keeps a house out of probate, and that a house that does go through probate will eventually be distributed or sold under court supervision. What they frequently miss is that the transfer itself is only half of the job. The other half is fixing the value of the property as of the date of death, in writing, by a licensed appraiser, while the evidence is still fresh. That number becomes the new owner’s tax basis, and it controls how much tax, if any, is owed when the house is sold.

This post explains why the date-of-death value matters, what happens when nobody documents it, and why a retrospective appraisal ordered months or years after death costs more, proves less, and sometimes cannot be done at all.

The stepped-up basis: why the date of death is the number that matters

When someone sells property, the taxable gain is the sale price less the seller’s basis. For property a person buys, basis is generally what they paid plus the cost of improvements. For property a person inherits, the rule is different. Under 26 U.S.C. § 1014(a)(1), the basis of property acquired from a decedent is “the fair market value of the property at the date of the decedent’s death.” The decedent’s original purchase price disappears from the calculation. This is the “step-up” in basis, and for a house that has been owned for decades it is often the single largest tax benefit an heir will ever receive.

The step-up is not limited to property that passes through a will. Section 1014(b) reaches property acquired “by bequest, devise, or inheritance,” and the regulations and IRS guidance extend the same treatment to property that passes by beneficiary deed, by a revocable trust, and by other transfers that are included in the decedent’s gross estate. IRS Publication 551 states the rule plainly: the basis of inherited property is the fair market value at the date of death, or the value on the alternate valuation date if the personal representative elects it under § 2032. The alternate date is six months after death, and it is available only when an estate tax return is filed and the election reduces both the gross estate and the tax. For the ordinary Missouri estate, the date of death is the only date that matters.

The numbers in the example are illustrative, but the mechanism is not. The step-up is worth exactly as much as the heir can prove. The burden of substantiating basis is on the taxpayer, not on the IRS, and “my mother told me it was worth about $340,000” is not substantiation.

Why a beneficiary deed makes this mistake more likely, not less

A house that goes through probate has a built-in checkpoint. Missouri’s probate code requires the personal representative to file an inventory and appraisement within thirty days after letters are granted, and it authorizes the court to appoint “a qualified and disinterested appraiser” to determine “the fair market value, as of the date of the decedent’s death” of any asset whose value is in reasonable doubt (RSMo § 473.233). A personal representative who takes the fiduciary role seriously will get an appraisal because the court and the heirs expect one. Even so, we regularly see probate inventories that list the county assessor’s figure or a number the family agreed on, which is a problem we address below.

A beneficiary deed has no checkpoint at all. Under RSMo § 461.025, a deed recorded before death “transfers the interest provided to the designated grantee beneficiary, effective on death of the owner.” No court is involved, no inventory is filed, and no one is required to value anything. The grantee records an affidavit of death with a certified death certificate and the title is theirs. The efficiency that makes beneficiary deeds attractive is the same feature that lets the valuation step go unnoticed. We wrote about the related trade-offs of nonprobate transfers in our posts on transfer-on-death accounts versus trust gifts and on the Estate of Hicks creditor decision. The same principle applies here. A nonprobate transfer is a titling tool. It does not do the administration for you.

The same gap exists for a house held in a revocable living trust. The successor trustee has a duty to account to the beneficiaries and should value trust assets at death, but nothing forces the issue unless the trustee or the beneficiaries know to ask. In our trust administration engagements the date-of-death appraisal is one of the first items on the checklist for exactly this reason.

What a retrospective appraisal costs, and why the cost keeps rising

An appraisal ordered within a few weeks of death is a routine assignment. The appraiser inspects the house as it stands, pulls comparable sales from the current multiple listing service, and issues a report with an effective date of the date of death. The house, the market, and the data all line up.

An appraisal ordered two or three years later is a different product. Appraisers call it a retrospective or “date of death” appraisal, and it must be prepared using only information that existed on the effective date. According to appraisal industry guidance on the retrospective appraisal process, the appraiser has to locate archived listings, historical tax and permit records, and comparable sales from the period, and must reconstruct the condition of the property as it existed at the time, often from old inspection reports and the owner’s recollection. Standard residential appraisals in the industry sources we reviewed run roughly $300 to $600. Retrospective assignments start above that range and rise with the age of the effective date and the complexity of the property. In our experience with Missouri estates, a retrospective appraisal on a house that has since been renovated, or where the effective date is more than a few years back, can run several times the cost of a current appraisal, and some appraisers decline the assignment.

Cost is the smaller problem. The larger one is evidentiary weight. A report prepared contemporaneously by an appraiser who walked through the house is difficult to dispute. A report prepared years later from archived data and family recollection is an educated reconstruction, and the more it relies on assumptions about the property’s condition, the more room an examiner has to discount it. If the heirs have already remodeled the kitchen, replaced the roof, or finished the basement, the appraiser is being asked to value a house that no longer exists.

Why the county assessment and a Zestimate are not substitutes

Families often assume they are covered because the county assessor’s appraised value is on record, or because an online estimate can be pulled for any date. Neither is a fair market value determination in the sense the tax code uses. Missouri assessors value residential property for tax purposes on a two-year reassessment cycle, and assessed values commonly lag the market and are not adjusted for the specific condition of the house. Automated online estimates are statistical models that do not inspect the property and carry published error margins that can exceed the entire gain an heir is trying to document. Either figure may be useful as a sanity check. Neither is what a preparer wants attached to a Form 8949 when the sale is reported, and neither is what will carry the day if the return is examined.

The standard the IRS applies is fair market value: the price at which the property would change hands between a willing buyer and a willing seller, neither under compulsion and both with reasonable knowledge of the relevant facts. A written appraisal by a state-licensed or certified appraiser, with an effective date of the date of death, is the accepted way to establish that number for real estate.

The step-up in basis is worth exactly as much as the heir can prove. The appraisal is the proof.

Three other things the appraisal does for the estate

It settles disputes among heirs before they start

When one child wants to keep the house and buy out the siblings, or when the house is one of several assets being divided, the date-of-death value is the number everyone negotiates from. An independent appraisal ordered early removes the argument. A number that one heir proposes two years later, after the market has moved, is an invitation to litigation. Our contested estates work includes more than a few families who could have avoided the courthouse with a $500 appraisal.

It supports the personal representative’s inventory and accounting

In a supervised probate estate, the inventory value drives the statutory fee calculation, the bond amount, and the final settlement. A personal representative who lists a guess and is later shown to have been materially wrong has a problem with the court and with the beneficiaries. The appraisal protects the fiduciary as much as the heirs. Where the estate is small enough for a small estate affidavit, the value of the real estate is often what determines whether the estate qualifies at all.

It is required for any estate that files a federal estate tax return

For 2026 the federal basic exclusion amount is $15,000,000 per person, made permanent and indexed by the 2025 tax legislation, so most Missouri estates will not file a Form 706. Missouri itself imposes no separate estate or inheritance tax. For the estates that do file, a qualified appraisal of every parcel is mandatory, and the basis consistency rules in § 1014(f) bind the heirs to the value reported on the return. Our estate tax and complex administration practice handles those filings, but the underlying discipline is the same at every estate size: value the house, in writing, as of the date of death.

What to do, and when

For families still on the planning side, the lesson is to pair the transfer document with instructions. A beneficiary deed, a transfer-on-death designation, or a trust should come with a written note to the people who will receive the property telling them what to do in the first month. Our overview of wills, trusts, and beneficiary designations explains how those layers fit together, and the free basic estate plan tool on this site is a starting point for anyone who has not put the documents in place at all.

Related on this site: No Estate Tax Doesn’t Mean No Tax Return: A Missouri Executor’s Form 1041 Obligations

Related on this site: Buying and Selling Property · Taxable Estate Planning · Common Mistakes by Executors and Successor Trustees · A 1962 Pipeline Easement Runs With the Land

This article is provided for general educational purposes only and does not constitute legal or tax advice. Reading it does not create an attorney-client relationship with Haake Law Group, PC. Tax figures, exemption amounts, and appraisal cost ranges cited here are current as of the date of publication and change over time; the example calculation is illustrative and omits selling costs, depreciation, the net investment income tax, and other factors that may apply. Missouri and federal law carry penalties for inaccurate tax reporting. Verify current rules with the Internal Revenue Service and the Missouri Department of Revenue, and consult a licensed attorney or tax professional about your specific situation.